Worked on the frappe/frappe repository to deliver a targeted stability improvement for the Document Management System’s follow and unfollow functionality. Addressed a bug introduced by PEP 563 lazy annotations, which had caused type coercion issues affecting the correct interpretation of follow status and the boolean return value for unfollow actions. The solution involved refining type handling and logic across both the UI and API layers, ensuring consistent behavior for end users and API consumers. Utilized JavaScript and Python to enhance maintainability, reduce edge-case errors, and minimize future regression risk, focusing on robust API integration and both backend and frontend development.